e/Crackle tube

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has glosseng: A crackle tube is a type of plasma lamp that is used most commonly in museums, night clubs, movie sets, and other applications where its appearance may be appealing for entertainment. Such a device consists of a double walled glass tube with a hollow center. The cavity between the inner and outer glass tubes is filled with thousands of small phosphor coated glass beads. A 5–14 kV transformer sends a very low power, high frequency electrostatic discharge into the bead filled cavity, producing filaments of light that simulate lightning. Crackle tubes get their name not because of the sound they produce but rather because of the appearance of their internal behavior. The "lightning" (filaments or streamers) is forced around and in between the phosphor-coated glass beads, due to the beads' dielectric nature.
lexicalizationeng: crackle tube
instance of(noun) an electric lamp in which the light comes from an electric discharge between two electrodes in a glass tube
electric-discharge lamp, gas-discharge lamp
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